Blank feeding and gluing device



M130, 1930. H, ARLE 1,786,476

BLANK FEEDING AND GLUING' DEVICE Original Filed Oct. 18, 1926 10 Sheets-Sheet l M five/(Carla Dec. 30, 1930. v H. cm; 1,786,476

BLANK FEEDING AND GLUING DEVICE Original Filed Oct. 18, 1926 10 Sheets-Sheet 2 la y um 91 4 5-; YIW LEIIIWIIIIIIi; i [filllli .9 57 Mum mum I Ell :G

. illllljn Dec. 30, 1930. H RL BLANK FEEDING AND GLUING DEVICE 1o Sheets-Sheet 3 Original'Filed Oct. 18, 1926 & ww

IILVE' lIlE\ flew m 042%? Dec. 30, 1930. H. CARLE 1,786,476

BLANK FEEDING AND GLUING DEVICE Original Filed Oct. 18, 192Q 10 Sheets-Sheet 4 Dec; 30, 1930. V H. CARLE- I 1,786,476

BLANK FEEDING AND GLUING DEVICE Original Filed Oct, 18, 1925 -10 Sheets-Sheet 7 VE IIQEK Dec. 30, 1930; H. CARLE BLANK FEEDING AND GLUING DEVICE Original Filed Oct. 18, 1926 10 Sheets-Sheet 8 W. 9 6 i 6 a d 3 1 9 Q. 9 M fl/IMM 5 1 .1; l I W 5. 1 9

E E] ikrafd Car/6 1 H. CARLE BLANK FEEDING AND GLUING DEVICE Original Filed Oct. 18, 1926 10 Sheets-Sheet 10 PatentedDec. 30, 1930 xenon) CABLE or 3mm, NEW

rvoarnx our company, or on'rcaeo, xrmnors, Brain: rnn'nme'annienumefnnvicn f YO K, ssiewon,

1,7sa47s A oonromrrou or flrig'inal application filed mm- 18,1928, Serial 110,142,370. Divide; and ail-jejunum m v 12,1927. serial 230,430. 1 v

This invention relates to improved cup blank feeding and No.142,370. v e I The resent invention relates to a-paper cup making machine and more particularly to improved paper cup body blank feeding and gluing devices for automatically remov-- ing'cup body blanks from a magazine, trans fe'rring theblanks to an automatic adhesive;

' applying device and-then delivering the adhesived blanks inte position to by cup forming mandrels;

be gripped It is an ob ect'of this invention to provide a flat bottom cup forming machine with improved pneumatic blank feeding means adapted to pneumatically g'ripand remove a operation of cup formingma'ndrels. H

It is alsoanobject of this inventionte provide a cup making machine with a magazine having'an adjustable "blank supportingi bottom adapted to automatically raise cup b anks into a-position to permit the uppermost'blank to be pneumatically gripped by a transfer block which is adapted, inturn, to be automatically moved at a predetermined time into a positionwherein the transferred blank is positioned above an automatically acting gluing device, to permit strips of glue tobe stamped on the blank in time to permit a cup body blank feed'mechanism to engage and feed the glued blank to forming mechanisms with the release of the transfer mechanisms.-

provide a cup forming-machine with a plurality of feed j mechanisms operable between a blank holding magazine and a gluing device, and between said gluing device and. cup forming mandrels whereby cup blanks, i as they are being transferred from the maga p gluing devices and is a division ofmy co-pending application for =patent for a-Flat bottom cup making machine, filed October 18th, 1926, U. Serial machine pro said blank into a position over an adhesive illustrated in the mechanism' adapted to advance the adhesived b-lankinto the field of which the improved glued blank by'said n is a-further. object of this invention to -Arm omcs at; imam no i :omwm

zine to said forming mandrels' "are'inter-f rupted in their course of travel to' adhesive to be automatically stamped t ereon 'priorto the deliveryl of said blanks'tojthe forming mandrels. I g

It is an important object of this invention to provideacup forming machine-with 'im- 'PmVed pneumatically I g controlled transfer and gTIPPIIIg dBVI CGS adapted to acta't predeter' 'ned times for thepurpose of remov 7 in blanksfrom a magazine',;transferring said blanks "to an adhesive a' plying mocha? nism, then releasing said a to permit the same to be which, inturn, act automatically'to deliver esived blanks g 0 I pneumatically gripped by additional 1 feed mechanisms the adhesive blanks into. the cup forming er to be formed into on Other an further important al this Invention will be apparent from the dis- Thls invention morefully described. On the drawing: Figure 1 is a a 'gmenta'ry top lan vievii s. jects of; 10 closures in the specification and the 'accom panyingdrawings. v (in a preferred form) "is" drawings and hereinafter of a1 flat-bottom cup-forming mac he with .i blank feedin mecha-' msms and gluing device's, emb yin nth-e} principles of this invention; are adapted 'to i be associated;

Figure 2 is a of another portion of the'machine, illustrating a top plan supporting, blank transfer and blank gluin fragmentary top plan view" view of the improved blank mechanisms forming thesubjectmatter 'o this invention. e c Figure 3 is a'fragmentary right side ele- Figure i is a fragmentary horizontal sectionalview beneath the machine table taken onlineIv lv of Figure 3 Q- c Figure 5 'is'a' vertical v ont viewhof, he

body blank magazine and feedsmechanisms taken online V- -.V of Figure2.

line -VI of. gure cammech'anism which controls the pneuvation'of themachine'withpartsomitted; v

' Fi i y demimkenzoii I i 1 llustratin th 4 matic operating means of the body blank transfer arm.

a Figure 7 is a vertical detailed view taken on line VII-VII of Figure 4, illustrating a the cam mechanism which overns the swinging operation of the be y blank transfer arm.

Figure 8 is a vertical detailed view taken on line VIII-PVIII of Figure 1 and showing the cam mechanisms which" overn the swinging operation of the body lank feed arm and the operation of the pneumatic controls forming a part thereof.

Figure 9 1s a vertical detailed view taken on line IXIX of Figure 4, showing the gear mechanisms which control the lowering of the body blank magazine.

Figure 10 is an enlarged top plan view of the body blank carrying magazine with the blanks removed. blFi 11 is a side elevationkof the bpdy an carrying magazine ta an 'on ine XI-XI of Figure 2.

Figure 12 is afragmentary detailed sec- 35 tion taken on line XII-XII of Figure 10.

Fi re 13 is an enlarged fragmentary detaile section taken on line XIII- x111 of Figure 4.

igure 14is an enlarged detailed secblank transfer mechanism tion of the bod taken on line -m of Figure 2.

Figure 15 is a fragmentary detailedplan view of the transfmechanism taken on line X V XV of Figure 14.

Figure 16 is an enlarged elevation of the upper .portion of the blank transfer control mechanism taken on line XVI-XVI of Fi re.5.

i 17 is an enlarged top plan view of itlirelk y blank adhesive app ying pad and 18 is a vertical detailed section of glue tank taken on line XVIII- XVIII of Figure 17.

Fiflu'e 19 is an enlarged top lan view of the 9rd mechanisms for glued lanks.

Figure 20 is a lon 'tudinal detailed section taken on line -XX of Figure 19.

Figure-21 is an enlarged detailed view taken on line XXIXXI of Figure 20.

Figure 22 'is an enlar d detailed view taken on line XXII-X II of Figure 20.

As shown on the drawings: The improved rotary flat-bottomed cup- "m flattomed cups out of a plurality of blanks, has associated therewith improved mechanisms embodying the present invention and adapted to remove. a sector-shaped body "blank from a ma azine and automatically transfer the blank into the field of operation of an adhesive apply ng mechanism to permit the blank, to e stamped with strips of adhesivebefore feeding said blank, by means of an improved pneumatic feed device, into a machine, which is adapted to produce I position to be engaged b a forming manrel of the machine to be s aped therearound to form the body of a flat-bottomed cup.

With the above briefly mentioned operations in mind, it-will be seen that the improved machine consists generally of a plureality of associated devices which are supported upon a metal framework comprising a table or platform 1, supported b legs 2. Disposed longitudinally below the t le 1 and sup ortedby suitable braces formin parts of the legs 2 is an air exhaust tank 3 lgure 4), the pur ose of which is hereinafter more fully described. 7

It will be conducive to a clearer understanding of the operation of the machine to describeat this point the character and arrangement ofthe main drivin mechanism. A horizontal drive shaft 4 is ournalled in suitable bearings 5, held by brackets 6 mounted on the table 1, and is rotated through a meshes with a driving pinion 9 mounted on one end of the shaft 10 of a driving motor 11.

The motor ll is supported by a bracket 12 secured to the rear side of the machine frame-- work Fig. 1). A hand wheel 13 is secured near t e forward end of the main shaft 4. Mounted on the rear end'of the main shaft 4 is a sprocket, around which an endless chain 14 is trained. The chain 14 is connected to drive a rotary exhaust pump 15 which is connected by means of a pipe 16 to the air exhaust tank 3.

An auxiliary horizontal cam shaft 17 is journalled in bearings 18 on the brackets 6 and in a bearing brac et mounted on the table 1. A pinion 19 on the shaft 4 is in mesh with a lar e'gear 20, on the shaft 17, thereby causing t e shaft 17 to be continuously rotated. A horizontal central shaft 21, mounted in bearings 22, is'intermittentlv rotated by the cam shaft 17 by means of eneva ears 23 and 24. Duringthe rotation of t e main shaft 4, continuous rotation will be impartedto the cam shaft 17 and to the shaft of the pump 15, while a central shaft 21 is intermittently rotated from the cam shaft 17.

The various 0 erations of forming flat-bottomed cups are ocused about a spider, or turret-head, which is keyed to the central shaft 21 for intermittent rotation therewith. The

turret-head comprises a plurality of integrally connected radially directed arms or spokes 25. Each of the arms 25 is provided with a bearing stud upon which is mounted a rotatable frustum-shaped cup former, or mandrel, 26. Each mandrel 26 is provided with a plurality of gripper apertures or openings 27 disposed in a longitudinal row. The mandrel apertures 27 are connected through suitable passages to a vacuum control plate clutch 7 adapted to be operated by a conven- 28 (Fig. 2) which is loosely mounted on the shaft 21 against the back face of the turrethead and is suitabl passaged to register'with the passages rovi ed in the turret-head arms 25. A flexib e tube or pipe 29 leads from the vacuum plate 28 to the air exhaust tank 3.

The frustum-shaped mandrels 26 are provided withflat outerend surfaces to receive flanged cup-bottom blanks from a cup-bottom blank punchin and feeding attachment, designated as a w ole by the reference nu meral 30 (Fig. 2) the details of which form no part of the present invention and are clearly described in the earlier patent hereinbefore referred to. The apertured forming mandrels 26 are adapted to receive and pneumatically grip cup body blanks at predetermined times and are furthermore subject to rotation on their supportin studs at predetermined times and to trans ation periodically from one position to another in a circular ,path by reason of the rotation of thecentral shaft 21.

posed cam shaft-35. The shaft 35 is driven y an endless. chain 36 which is trained around sprocket wheels carried by the shaft 35 and the shaft on which the gear 20 is supported.

Having briefly described the main driving parts of the machine, the apparatus for supporting, feeding and gluing a cup body blank will now be described.

Rigidly secured to the front right hand corner of the table 1 is an extension board or auxiliary table '37. Positioned adjacent the front edge of the table '37 is a magazine supporting post or sleeve 38 having an integral arm 39 which is rigidly secured to the upper surface of the auxiliary table 37. Mounted upon the upper end of the sleeve-38 is a fiat plate or head 40, to' which a magazine base plate 41 isrigidly fastened.

Secured upon the top of the base plate 41 are a plurality of stationary guide arms 42 a and a pair of; adjustable guide arms 43, which are adjustable in guide slots 44 provided inthe base plate 41.. Also mounted upon one corner of the base plate 41 is a stop arm 45 which is slightly higher than the guide arms 42. and 43Iand carries an adjustable stop screw 46. The screw 46 servesas a stop to limit the swing of a cup blank transfer. frame 47 hereinafter more fully described.

" Each of the blank guide arms 42 and 43 is provided with a smooth liner plate 48 fasfrictional en agement between the stack of blanks and said liner plates 48, the upper ends of which are adapted to be deflected inwardly by the screws'49.

Positioned above the. magazine base plate 41 is the movable false bottom or cup-blank supportin% plate 50, which is shaped as illusigpre 10 to slide upwardly and trated in downwardly etween the guide arms 42 and 43. The false bottom is ada ted to carry a stack of cup bod blanks 51 w ich are of segment shape, as i lustrated in Figure 2. The blank carrier plate is secured upon the u per end of a post or rod 52. A in 53 (Fig. 5) projects from the post 52 an slides in a longitudinal slot 54 provided in the sleeve'38. The post 52 is slidable through the sleeve 38 and passes u wardly through an opening 55 in the base p ate 50. Connected to the lower end of the post 52 is one end of a control spring 56 (Fig. 5), the u per end of which is secured to the bottom 0 the auxiliary table 37 and normally acts to raise the blank car rier plate 50 and the stack of cup blanks carried thereon to permit the uppermost cup body-blank in the stack to be delivered against a blank transfer mechanism hereinafter described.

Secured around the 0st 52 is a collar or sleeve 57 having a slot in one side thereof to permit. an eccentric disc 58 to co-act with the post at predetermined times to pull the same downwardly against the action of the sprin 56. The disc 58 is supported on a stub sha t 59 carried by a pair of brackets 60 fixed on the sleeve 57'. Fixed on one end of the stub shaft 59 is a crank arm 61 to which one end of a connectinglink 62 is pivotally connected (Fig. 11). The other end of the link 62 is' pivoted to a toggle arm 63 which slidably projects through a slot 64 (Fig. 3), formed in a uide bracket 65 secured to the auxiliary ta le 37.

A pin 66 rojects' through theslot 64 and.

serves as a ulcrum for the free end of the toggle arm 63. The second .end of the toggle arm 63 is pivoted'to one end of a crank arm 67, the other end of which is fixed on one end of a shaft 68, journalled in bearing brackets 69 and 70 supported on the auxiliary table 37 Secured on the shaft 68 adjacent the hearing bracket 70 is a crank arm 71 (Fig. 4), which is pivoted to one end of a connecting rod 72 having a turnbuckle 73 intermediate the ends thereof to permit adjustment of the connecting rod. The other end of the connecting rod 72 is pivoted to a crank arm 74 secured on a shaft 75 'ournalled in a bearin bracket 76 su ported neath the table 1.

Geneva gear 7 is fixed on the shaft 75 (Fig.

.end of a slide plate 10% 9) and co-acts with-a Geneva gear 78 fixed on the cam shaft 35 to receive a drive therefrom.

From the cup zine the body b moved one at a time from the top of the stack. This operation is performed automaticall at predetermined times by means of a blank transfer mechanism, comprising a control cam 79 (Fig. 4

body blank carrying maga a roller 80 (Figs. 4 and carried on one end of a yoke bar 81. The oke bar 81 is provided with a slot 82 through which the cam shaft 35 projects. The other end of the yoke bar 81 is pivotally connected to a yoked member 83 havin a telescoping en agement with a second yo e member 84. 0 two yoked telescoping members and 84 are connectedby; a cushioning spring 85 positioned between the oked heads of said members. The head 0 the yoked member 84 is pivoted to a lower bell-crank arm 86 fixed or integral] formed on the lower end of a bell-crank a cave 87 (Fig. 7), whlch 1s "mounted ona vertical shaft 88 fastened to oted thereon. The other end 0 the connect-. rod 90 is pivoted to a crank arm 91 (Fig.

4) aving one end thereof pinned to the lower end of a tubular vertical shaft 92 (Fig. 14) which projects upwardly through a supporting sleeve 93 rovided with an inte ral bracket 94 rigi y secured to the auxiliary table 87. Seated upon the upper end of the sup rting sieeve 98 and engaged around the shat 92 is a collar 95 having an air outlet passa 96'therein, into one end of which an air e'x aust pipe 97 projects.

An air controlvalve 98 is rovided 1n the ipe 97 and has a valve contro lever 99 form- 1. a part thereof. Connected to operate the va ve control lever 99 is one end of a-link 100, the other end of which is pivoted to the upper ig. 16). The plate 101 is slidably moun in -a guide groove provided in a guide bracket or extens on 102 ormed on one side of the supportingsleeve 93. Attached to the slide plate 101 is the upper deflected end of aslotted connecting bar 103,-the lower end of which carries a roller 104. The roller 104 co-acts with the periphery of a control cam 105 fixed onthe cam shaft 32. through the table 1 and connects up with a main control valve 106 (Fig. 4) mountedin an air main 107 leading to the air exhaust tank 3. A valve stem .108 is connected with the valve 106 to permit manual control thereof. a

face thereo (Fig. 14). The groove 110 comanks 51 are adapted tobe refixed on the cam shaft The air pipe 97 projects EIILIPOSG of grippm washer on the shaft 92 beneath the arm 113. The auxiliary air exhaust pipe 111 also connects up with an opening in an apertured plate 116, supported on the cup blank transfer yoke or rame 47, which is fixed on the end of the arm 113 (Fig. 15).

Hinged to one ed e of the plate 116 (F i 5), is a hollow cu hlanl-r transfer block 1 7 shaped substantially the same as the plate 116 and havin a plurality of a ertures 118 in the bottom ace thereof. The lank transfer block 117 is also provided with an air exhaust opening 119 in the top wall thereof adapted to register with the end of the auxiliary air exhaust pipe 111 when the block 117 is in closed position, contacting the supporting plate 116 as illustrated in Fig. 14. 7 Secured to the blank transfer block 117 is one end of a handle rod 120 which is journalled in a depending end of a bracket 121 secured upon the arm 113. A spring 122 is engaged around the rod 120 between the bracket 121 and a sleeve 123, and normally acts to hold the block 117 in contact with the plate 116.

Formed on the end of the sleeve 123 is a cam arm 124 which co-acts with a pin 125 slidably mounted within the hollow shaft 92.'

The lower end of the stern 127 projects from the shaft 92 and seats against 'a shoulder 128 formed on one end of a crank arm 129. The

crank arm 129 is fixed on a shaft 130 journalled in a bearing bracket 131 secured to the bottom of the auxiliary table 37 and in a bearing supported on one of the front legs 2 of the machine. Mounted on one side of the 'disc 136 secured upon the top of the .arm 113.

With this arrangement, the sleeve 109 will rotate with the arm 113 and the shaft 92.

The apparatus just described is for the the uppermost body k in the blank transferring the removedbody b ank into a position over an adhesive applying mechanism which-will now be described.

' The removed blank is held by the gripper block 117 beneath the transfer frame 47 over the adhesive applyin mechanisms, as illustrated in Fig. 2. I he adhesive applying mechanisms comprise an adhesive or glue olding ma azine and end of which is pivoted to the inner ang ed crumed intermediate its ends on 2.

supply tank 137 having a plunger pot 138- integrally formed'on thebottom thereof and communicating with the interior of said tank which'project u wardly into the tank 137,, as illustrated in igures 17 and 18. 'Slidably' engaged on the posts 141 is a double cylinder plunger 142 having a. plate 143 secured or formed on the upper end thereof within the tank 137. Formed on two edges of the plate 143 are a straight adhesive applying pad 144 and acurved pad 145. p

Pivoted to the lower end of the plunger 142 is the lower end of a link 146, theup er endof a lever 147. The lever 147 is fulin 148 supported in bearing lugs 149 forme on the upper edge of the tank 137. Pivoted to the outer portion of the lever 147 and operable thereby is the upper end 'of a connecting rod 150, the lowerend of which is-pivoted to one end of a control bar 151. The bar 151 is integrally formed on a'sleeve 152 loosely engaged on a shaft 153 supported in bearing brackets 154 and l55.mounted on the under face ofthe auxiliary table 37 and the table 1 respectively. The outer or forward'end of the control bar l51is notched (Fig. 3) to co-act with the endof a stop bracket 156 secured to the under face of the auxiliary table 37 to limit a rebounding upward movement of the adhesive ap lying pads 144-145 after the bar 151 has rst been actuated as hereinafter described.

Also pivotall connected to the lever 147 is the upper en of a telescoping connecting member 157 having a coiled springil58 covering and connecting the telescoping parts.

' The lower end of the telescoping member 157 1 nisms.

' is pivoted to one end of a lever 159, the other end of which is rotatable on the shaft 153 adjacent the sleeve 152. Rigidly secured on the shaft 153 adjacent the lever 159 is a crank arm 160. The free end of the crank arm 160 is provided with a pair of lugs 161 carrying adjustable set screws 162 which contactthe side ed es of the lever 159 to permit adjustment 0% the adhesive pad operating mecha- The spring-connected telescoping member 157 serves to cause the adhesive pad to be operated against a. blank with a resilient or cushioning action.

The shaft 153 projects through a sleeve 163 positioned between the bearing bracket 155 and a bearing bracket 164 secured to the table 1 (Fig. 9). Fixed on the end of the shaft 153 to the outside of the bearing bracket 155 is a crank arm 165 to which the lower end of a rod 166 is pivotally connected. The upper end of the rod 166 projects above the edge of the table land is secured to a channel yoke orunion 167 which carries a pivot bolt 168 (Fig. 9). Pivoted on the bolt 168 isthe lower end of a bar or arm 169 (Figs. 1 and 9), having a slot therein through which the cam shaft 17 projects. A roller 170 on the u per end of the arm 169 .co-acts with the perip cry of an adhesive pad control cam 171 fixed on the cam shaft 17. 3

After the adhesive applying mechanism has beenactuated to apply a straight and-a curved strip of adhesive to the under surface of the transferred body blank 51, held by the gripper block 117 in the position illustrated in Fig. 2, the control cam 133 moves into the position illustrated in Figure 14, thereby permitting the stem 127 to dro by gravity, causing the in 125 to act on t e cam arm 124 to swing t e gripper block 117 downwardly away from the plate 116 to break or release thevacuum or suction action in the ripper block 117. The gluedbody blank is t us antomatically released by the transfer mechanism and delivered to a cup body blank feed mechanism, which willnow be described.

' The cup body blank feed mechanism comprises a lank receiving having a plurality of inter-connected passages l73-therein, as illustrated in Figures 19 and 20. The top wall of the feed head 172 is provided with two rows of-apertures 174.

A curved slot175 is provided in the blank feed head 172 for the purpose of receiving a blank centering lever (not shown). An extension arm 176 is integrally formed on the feed head 172 and is secured to the outer end, of a swinging arm 177 having a passaged supporting shank 178 formed on one end thereof and provided with angled air passages 179 and 180 which open up through the top of said shank and through opposite sides thereof. A pipe 181 connects the side openhead or block 172 ing of the shank air passage 179 with a passage 182 in the outer end of the arm 177. Connected in the side opening of the passa e 180 is one endof an elbow pipe 183, to t e other end of which an air exhaust pipe or tube 184 is connected (Fig. 2). The tube 184 passes downwardly through an opening in the table 1 andconnects up with a pipe 185 (Fig. 4) leading to a control valve 186 ada ted to be operated manually by means 0 a valve stem or valve control rod 187. The control valve 186 connects up with the main air exhaust pipe 107 leading to the air exhaust tank 3. I i

The shank 178 of the feed arm 177 has a hollow 0r passaged shaft 188 integrally formed thereon with said shaft projecting downwardly through a bearing sleeve 189 formed on a bracket 190 fixed on the top of the table 1. Secured rigidly to the project-ing end of the hollow shaft 188 is a crank arm 191 having a threaded bolt extension192 formed thereon. A yoked connector 193 is pivoted on the bolt extension 192 between retaining nuts. Connected to the connector 193 is a connecting rod 194, the inner end of which is pivoted on the upper end of a fulcrum'ed bar 195 (Fi 8), rojecting throu h an opening 196 in e tab e 1 and so por on a bracket secured to the under sur ace of said table. A roller 197 is carried on the lower end of the fulcrumed bar 195 and has rolling contact with a feed arm control cam 198 secured on the cam shaft 85. a

Rotatably seated upon the passaged shank 178 (Figs. 19, and 22) is an air exhaust control valve 199 having a diametric passage 200 therein connectin two arc-shaped passages 201 and 202 in e lower face thereof, co-acting respectively with the air Passages 180 and 179 of the arm shank 178. ntegral- 1 formed on the valve 199 is a valve stem 203.

e valve 199 is also provided with an air release port or a erture 204. The valve stem 203 projects ownwardly through the hollow shaft 188 and has a crank arm 205 fixed on the lower end thereof. The crank arm is positioned to be actuated by a finger g or lever 206 fixed on a stub shaft 207 journalled in bearings 208 ri 'dly fastened to one of the side edges of t e table 1. Also fixed on the stub shaft 207 is a crank arm 209 to which one end of a connecting rod 210 is pivotal] connected. Formed on the other end of t e rod 210 is a oked or forked member 211 which is slida 1y engaged over the shaft (Fig. 8). A roller 212 is carried by the rod 210 and co-acts with an air-valve control cam 213 fixed on the shaft 35. A re.- turn spring 214 for the'valve 199 and cam roller 212 isconnected between the bracket 190 and an arm 215 (Fig. 20), formed on the hub of the crank arm 205.

As a lued blank is released by the transfer bloc 117, the'blank feed head 172 is positioned beneath the glued blank and the control valve 199 is so (positioned that a suction action is produce in the feed head to cause the released blank to be pneumatically gl'rl'ipped by said feed head. At this stage in t e making of a cup, the feed arm 177, controlled b the cam 198, is swung from the position il ustrated in Figure 2 inwardly toward the cup forming mandrel 26 in position A.

The blank feed head 17 2 is adapted to hold and carry the glued blank into the lane of the u per element of the conical rustumshape mandrel at station A and said upper element of the mandrel contains the row of pneumatic gripper openings 27, as illustrated in Fi ure 2. The advance end vof the glued cup blank is now ositioned over the row of a rtures 27 an beneath a raised pressure s oe 216 carried by an arm 217 ivoted to a spoke of a four-arm sprocket w eel or spider which is fixed on the shaft 21. The arm 217 carries a roller which co-acts with the periphery of an auxiliary pressure shoe control'cam 218.

At this, stage in the formation of a cup, the feed arm control valve 199 is operated to move the slots 201 and 202 out of register with the air passages 180 and 179, res ectively, to break off the connection with t e air exhaust tank 3. When the valve 199 is operated, the inlet port 204 is moved into register with the passage 179 (Fig. 20) thereby breaking the vacuum or suction action within the feed arm pipe 181 and the feed arm head 172. The cup blank on said head is thus released after it has been delivered into contact with the mandrel 26 in position A. At the time the glued'blank is released by the feed head 17 2 a suction action is produced in the mandrel 26 in position A, thereby causing the glued cup blank to be pneumaticall gripped or afiixed by suction to said man rel in an exact predetermined relation thereto. The mandrel 26, carrying the cup blank, is now adapted to be advanced through an arc of 90 by means of the Geneva ears 23 and 24 (Fig. 1), thereby causing said blank to be carried ahead by the forming mandrel into position B ready to be wound or formed around said mandrel to form a paper cup body.

The various mechanisms for conducting a glued body blank through the machine to be ormed around a cup bottom to cause the forming of a fiat-bottom cup will not be described herein, since said mechanisms form no part of the present invention and are clearly illustrated and described in applicants earlier patent hereinbefore mentioned.

The operation is as follows:

In connection with the detailed description of the various auxiliary mechanisms comprising attachments or parts of the flat-bottom cu forming machine of this invention, a somew at detailed description of the operation of the res ective mechanisms has already been given. t will, therefore, be necessary to give only a brief resume of the operation of the maindriving mechanisms of the machine in combination with the body blank transfer mechanisms, gluing device and feed mechanisms, which embrace the features of the resent invention.

To start t e machine, a control lever or the like is operated so that a drive from the motor 11 is transmitted to the main shaft 4 and then to the auxiliary mechanisms comprising the machine.

The cup body blanks 51 are supported in the magazine 4143 upon the false bottom 50, which is adapted to be raised by the action of the spring 56 to position the uppermost cup body blank against a blank transfer device. The false bottom is held in place by the frictional engagement of the edges of the stack of blanks with the liner' plates 48. The uppermost cup body blank 51 is now adapted to be removed from the top of the stack due to the action of the control cams 79, 105 and 133 (Figs. 4, 5 and 14).

The cam 79 acts to cause the blank transfer plate 117 to swing at a predetermined time from the position illustrated in Figure 2 into a position, limited by the stop screw 46, above-the blank-carrying magazine in time to permit the uppermost. blank 51 to be moved into engagement therewith when the magazine bottom 50 is raised. The control cam 105 now acts to cause operation of the air valve 98 to connect the blank transfer block 117 with the air exhaust tank 3. The air is thus exhausted from the block 117, thereby causing the uppermost blank in the magazine to be gripped by suction to the under face of the blank transfer block 117.

At this stage in the operation, the spring 85, which was tensioned, due to the action of the cam 79, on the roller 80, now acts to actuate the bell-crank 8689 and the rod 90 to swing the blank transfer block 117 back into the position illustrated in Figure 2. The gripped body blank 51 is thus' transferred from the blank magazine into position over the glue applying mechanism in the glue tank 137.

The glue applying control cam 171 on the cam shaft 17 now acts on the roller 170 to rock the shaft 153, thereby pivoting the arms 160 and 159 downwardly to actuate the telescoping connecting member 157. The outer end of the lever 147 is thus pulled downwardly, causing the-submerged glue apply: ing pad 14:4r-145 to be raised and resiliently pressed or stamped against the under face of the cup body blank 51, which, in turn, is pressed upwardly against the under faces of the curved and straight arms of the transfer frame 7. Any upward rebound movement of the glue pad which might occur due to the action of the spring 158 is limited by the stop bracket or arm 156 (Fig. 3) by having the notched end of the bar 151 come into contact with said stop bracket. A straight and a curved strip of glue is thus stamped or applied to the under surface of the cup body blank 51. The gripping surface of the suction block 117 is sufficient to hold a cup blank against the bottom of the transfer frame 17 without any appreciable sag at the trailing end of the blank.

The suction release control cam 133 now reaches the position illustrated in Figure 14:, thereby permitting the raised stem 127 to drop by gravity, causing the pin 125 to actuate the cam arm 124 to swing the gripper block 117 downwardly about its hinges away from the plate 116. The vacuum or suction action in the-block 117 is thus broken or released. The glued cup body blank is thereby automatically. released and is permitted to be delivered to the cup body blank feed head 17 2, positioned as illustrated in Figure 2.

crank arm 205 to rock the shaft 203 and move the valve 199 into open position to cause an air suction action to take place in the'apertured feed arm head 172. The glued cup body blank released from the transfer block 117 is thus pneumatically gripped by the cup blank feed head 172, ready to be fed into the machine for forming. f I

The feed arm control cam 198', at this stage in the operation, now co-acts with the roller 197 to operate the fulcrumed bar 195 and the connectingrod 194. The arm 191 is thereby rocked to partially rotate or rock the hollow shaft 188 to swin the feed arm 177 .and the blank carryin ead 172 from the osition illustrated in Figure 2 toward the orming mandrel 26 in station A.

The blank feed head 172 is adapted to carry the glued cup body, blank into the plane of the upper line'or element of the frustumshaped mandrel 26 so that 'theadvanced edge or margin of the glued blank is ,posi tioned over the row of air suction apertures 27 and beneath the raised pressure shoe 216.

The pr'essure shoe 216 at station A is raised, due to the action of the cam 219. Y i f The valve control cam 213 (Fig. 8) new acts to operate the valve 199 to move the slots 201 and 202 out of register with the air passages 180 and 179, respectively, thereby breaking the'air suction action in the feed head 17 2, since the free air port 204: now is in register with the passage 179. The glued cup blank is thus released by the feed head 172 after having beenmoved into contact with the formin mandrel 26 in station A and said feed ead is then automatically moved back into the position shown in F igure 2, ready to receive another cup body blank.

At the time a cup body blank is fed to the mandrel 26 in position A, suction valve control mechanisms, forming a part of the machine, are brought into operation by suitable control cams to cause a suction action tom paper cup, which is automatically discharged from the machine, counted and then to be created in the mandrel 26 in position 8 means stacked with other cups previously formed. The above mentioned operations are not covered in detail in this case, since they form no part of the present invention and arrtspecifically descri d in applieants earlier patentdiereinbefore mentioned.

I am aware that many changes may be made, and numerous details of construction may be varied through a wide ran without departirtilg from the principles of t is invention, an I therefore do not pur ose limiting the patent {ranted hereon, oterwise than neoemitated y the prior art? I claim as my invention:

5 l 1. In an apparatus for applyingl adhesive to blanks, a vertically movable a esive apmeans, a laterally movable transfer arm including suction means for conveying ablank from a source of blanks and holding so it in a substantiall horizontal position above said adhesive a pying means, means for 'actuati said eslve ap lying means to .apply esive to said bla a second transfer arm movable into a position below said first mentioned arm and means for relieving the auction on said blank whereby it may be received b said second arm to be removed I from sai position. i

2. In an apparatus as defined in claim 1 3 wherein the second arm includes a suction head for receivin and ri ping the blank.

In testimony w ereo I have hereunto sub-- scribed my name.

i HAROLD CARLE. 

